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[Bug 1393576] Re: internal mic is extreamly quiet

 

I've tested this against v3.18-rc5-vivid and see no difference.

** Tags added: kernel-bug-exists-upstream kernel-bug-exists-
upstream-3.18-rc5

** Changed in: linux (Ubuntu)
       Status: Incomplete => Confirmed

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https://bugs.launchpad.net/bugs/1393576

Title:
  internal mic is extreamly quiet

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  Hello,

  The internal mic of my Dell Vostro 1500 is extreamly quiet. It does work but one need to shout to get anything recorded. I've been trying to use all the STAC9025 models
  STAC9205/9254
  =============
    ref		Reference board
    dell-m42	Dell (unknown)
    dell-m43	Dell Precision
    dell-m44	Dell Inspiron
    eapd		Keep EAPD on (e.g. Gateway T1616)
    auto		BIOS setup (default)

  in /etc/modprobe.d/alsa-base.conf, but non of these changed the signal
  level.

  I was also playing with alsamixer and various settings including
  muting left/right channel as suggested in some other page without any
  effect.

  The mic works good in vista.

  Debug information:
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1393576/+attachment/4263142/+files/debuginfo.txt

  ---
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC0D1', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CurrentDesktop: XFCE
  DistroRelease: Ubuntu 14.10
  HibernationDevice: RESUME=UUID=4ad31b6d-9421-44c6-8fa9-1c51f8e868c3
  MachineType: Dell Inc. Vostro 1500
  NonfreeKernelModules: nvidia
  Package: linux (not installed)
  ProcFB:

  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-24-generic root=UUID=4fb34b1f-a7fe-4664-a794-eece38edeb6c ro splash quiet
  ProcVersionSignature: Ubuntu 3.16.0-24.32-generic 3.16.4
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-24-generic N/A
   linux-backports-modules-3.16.0-24-generic  N/A
   linux-firmware                             1.138
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  Tags:  utopic
  Uname: Linux 3.16.0-24-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

  _MarkForUpload: True
  dmi.bios.date: 04/21/2008
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A06
  dmi.board.name: 0WY040
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA06:bd04/21/2008:svnDellInc.:pnVostro1500:pvr:rvnDellInc.:rn0WY040:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Vostro 1500
  dmi.sys.vendor: Dell Inc.

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